High finishing on dial, case and movement. This sturdy piece feels different than other and when we look inside we can see why. The fine silver case has multiple gold accents. Caseback bears a monogram of the letters P and S. All lids a thick and close perfectly.
The helical balance spiral is something that was and still is very hard to produce. Often used by deck chronometers as these helical balance spirals are more accurate than normal horizontal spirals. Adjusted rubies all over the movement and a very fine finishing throughout. Solid tick and smooth winding.